GUI::Util::Variant Namespace Reference

Functions
bool	CompatibleVariantTypes (const QVariant &oldValue, const QVariant &newValue)
	Returns true if variants has compatible types. More...
bool	IsTheSame (const QVariant &var1, const QVariant &var2)
	Returns true if given variants have same type and value. For custom variants (e.g. ComboProperty) will always return false (see explanations in cpp file). More...
int	VariantType (const QVariant &variant)
	Returns type of variant (additionally checks for user type). More...

Function Documentation

CompatibleVariantTypes()

bool GUI::Util::Variant::CompatibleVariantTypes	(	const QVariant &	oldValue,
		const QVariant &	newValue
	)

Returns true if variants has compatible types.

Definition at line 25 of file VariantUtil.cpp.

{
    // if olfValue is undefined than it is compatible with any value, otherwise newValue
    // should have same variant type as oldValue
 
    if (oldValue.isValid())
        return GUI::Util::Variant::VariantType(oldValue)
               == GUI::Util::Variant::VariantType(newValue);
    return true;
}

References VariantType().

Referenced by SessionItem::setValue().

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IsTheSame()

bool GUI::Util::Variant::IsTheSame	(	const QVariant &	var1,
		const QVariant &	var2
	)

Returns true if given variants have same type and value. For custom variants (e.g. ComboProperty) will always return false (see explanations in cpp file).

Definition at line 39 of file VariantUtil.cpp.

{
    // variants of different type are always reported as not the same
    if (VariantType(var1) != VariantType(var2))
        return false;
 
    // custom type variants are always reported as not the same
    if (var1.type() == QVariant::UserType)
        return false;
 
    // standard variants (based on double, int, etc) are compared by value they are holding
    return var1 == var2;
}

References VariantType().

Referenced by SessionItemData::ItemData::operator==(), and SessionItemData::setData().

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VariantType()

int GUI::Util::Variant::VariantType

(

const QVariant &

variant

)

Returns type of variant (additionally checks for user type).

Definition at line 17 of file VariantUtil.cpp.

{
    int result = static_cast<int>(variant.type());
    if (result == QVariant::UserType)
        result = variant.userType();
    return result;
}

Referenced by CompatibleVariantTypes(), and IsTheSame().